8695 search results - page 1617 / 1739 » Making the Complex Simple |
190
click to vote
SIGMOD
2007
ACM
16 years 3 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
150
click to vote
PODS
2005
ACM
16 years 3 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
134
click to vote
PODS
2006
ACM
16 years 3 months ago
2006
ACM
Finding icebergs ? items whose frequency of occurrence is above a certain threshold ? is an important problem with a wide range of applications. Most of the existing work focuses ...
139
click to vote
PODS
2007
ACM
16 years 3 months ago
2007
ACM
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
128
click to vote
PODS
2008
ACM
16 years 3 months ago
2008
ACM
In this study we propose sketching algorithms for computing similarities between hierarchical data. Specifically, we look at data objects that are represented using leaf-labeled t...